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Lesson 17.10 Recursion and Helper Functions

Divide-and-conquer is not the only example of recursion. It just happens to be one of the most interesting. But in this video we show that even some of the simplest of recursive definitions become…

From  Hannah Lee 300 plays

Lesson 7.5 Bad Specifications

Not all specifications are good. Some of them – including those written by your instructor – are quite bad. In this video we talk about how to read a specification critically so that you…

From  Hannah Lee 67 plays

Lesson 6.3 String Methods

Strings do not have a lot of functions associated with them. Instead, strings have methods. As we see in this video, methods behave almost exactly like functions, except that the syntax for calling…

From  Hannah Lee 92 plays